參數(shù)資料
型號： IRU3047
廠商： International Rectifier
元件分類： 基準電壓源/電流源
英文描述： DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
中文描述： 雙同步PWM控制器，帶有均流電路和LDO控制器
文件頁數(shù)： 1/19頁
文件大?。?/td> 141K
代理商： IRU3047
IRU3047
1
Rev. 1.0
09/09/02
www.irf.com
TYPICAL APPLICATION
DESCRIPTION
The IRU3047 IC combines a Dual synchronous Buck
controller and a linear regulator controller, providing a
cost-effective, high performance and flexible solution for
multi-output applications. The Dual synchronous con-
troller can be configured as 2-independent or 2-phase
controller. In 2-phase configuration, the IRU3047 provides
a programmable current sharing which is ideal when the
output power exceeds any single input power budget.
IRU3047 provides a separate adjustable output by driv-
ing a switch as a linear regulator. This device features an
internal 200KHz oscillator, under-voltage lockout for all
input supplies, an external programmable soft-start func-
tion as well as output under-voltage detection that latches
off the device when an output short is detected.
Dual Synchronous Controller in 20-Pin Package
with 180
8
out-of-phase operation
LDO Controller with 40mA drive
Can be configured as 2-Independent or 2-Phase
PWM Controller
Programmable Current Sharing in 2-Phase Configu-
ration
Flexible, Same or Separate Supply Operation
Operation from 4V to 25V Input
Internal 200KHz Oscillator per phase
Soft-Start controls all outputs
Fixed Frequency Voltage Mode
500mA Peak Output Drive Capability
Short Circuit Protection for All Outputs
Power Good Output
APPLICATIONS
Dual-Phase Power Supply
DDR Memory Source Sink Vtt Application
Graphic Card
PACKAGE ORDER INFORMATION
T
A
(°C)
0 To 70
FEATURES
DUAL SYNCHRONOUS PWM CONTROLLER WITH
CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
DEVICE PACKAGE
IRU3047CW 20-Pin Plastic SOIC (W)
PRELIMINARY DATA SHEET
Data Sheet No. PD94252
Figure 1 - Typical application of IRU3047 configured as 2-phase converter.
Hard Disk Drive
Power supplies requiring multiple outputs
12V
5V
V
OUT2
PGood
C1
C2
L1
C6
R2
Q5
L4
Q4
Q1
C5
C7
3.3V
U1
V
OUT1
R8
C16
L3
C17
R5
R9
R7
C10
R1
R4
C9
R3
C8
C3
C4
C13
D1
D2
C11
PGnd
V
REF
V
CL
V
OUT3
LDrv1
HDrv1
Fb1
Fb2
Vp2
LDrv2
HDrv2
VcH1
VcH2
Vcc
Gnd
Comp2
Fb3
Comp1
SS
PGood
IRU3047
L2
C12
Q3
Q2
C14
相關PDF資料
PDF描述
IRU3047CW DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
IRU3048 DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
IRU3048CF DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
IRU3048CS DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
IRU3072C 20-PIN SYNCHRONOUS PWM CONTROLLER/ 3 LDO CONTROLLER
相關代理商/技術參數(shù)
參數(shù)描述
IRU3047CW 制造商:IRF 制造商全稱:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
IRU3047CWTR 功能描述:IC REG CTRLR BUCK PWM VM 20-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標準包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR
IRU3048 制造商:IRF 制造商全稱:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
IRU3048CF 制造商:IRF 制造商全稱:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
IRU3048CFTR 功能描述:IC REG CTRLR BUCK PWM VM 16TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:75 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.3 V ~ 13.5 V 降壓:是 升壓:是 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:0°C ~ 70°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:管件 產(chǎn)品目錄頁面:1051 (CN2011-ZH PDF) 其它名稱:296-2543-5
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